/**
 * Copyright 2016-2023
 * 
 * Bernd-Christian Renner, and
 * Hamburg University of Technology (TUHH).
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "aci.h"
#include "aci/types/test_noise_cmd.h"
#include "aci_test_noise.h"

#include <hal_adda.h>


/**************************************************************************
 * private prototypes
 */


/**************************************************************************
 * private functions
 */


/**************************************************************************
 * public functions
 */

bool
aci_test_noise_processCmd(const mm_packet_t * pkt)
{
  uint16_t  i, j;
  uint16_t  idx;  // prevent any wrap arounds when using uint8
  fp32_t    scale;
  fp16_t    testSig[TX_SAMPLES_PER_SYMBOL];
  aci_test_noise_cmd_t * p = (aci_test_noise_cmd_t *)pkt->payload;
  
  // sanity check
  if (pkt->header.len != sizeof(aci_test_noise_cmd_t)) {
    return false;
  }

  // obtain and check parameters
  if (p->step < 1) {
    p->step = 1;
  }
  if (p->dur < 1) {
    p->dur = 1;
  }
  
  // get scaling
  if (p->gc) {
    scale = 0;
    for (idx = 0; idx < FREQ_LIST_NUM; idx += p->step) {
      scale += freq_getTxGainByIndex(idx);
    }
  } else {
    scale = FP_ONE * (FREQ_LIST_NUM / p->step); // automatic floor
  }
  
  // prepare test signal
  for (i = 0; i < TX_SAMPLES_PER_SYMBOL; i++) {
    fp32_t tmp;
    tmp = 0;
    for (idx = 0; idx < FREQ_LIST_NUM; idx += p->step) {
      tmp += FREQ_TXLIST[idx][i];
    }
    testSig[i] = (fp16_t)fp32_div(tmp, scale);
  }

  // init tx mode
  adda_activateTransmission();

  for (j = 0; j < p->dur; j++) {
    // send out next frequency
    for (i = 0; i < TX_SAMPLES_PER_SYMBOL; i++) {
      adda_setSample(testSig[i]);
    }
  }
  
  adda_setNeutralSample();
  
  // wait until transmitter runs out of samples
  while (adda_hasSample()) {
    ;
  }

  // return to rx mode
  adda_activateSampling();

  return true;
}



uint8_t
aci_test_noise_fillReply(uint8_t * payload)
{
  return 0;
}